I'm calling Collector from Survey123 to map polys and lines. Unfortunately, the only layer displaying in Collector is the point layer, which I don't need to collect via Collector. The process I used: create the survey from the spreadsheet, add a record, download the data to gdb to add the poly & line fcs and relationships. Add the gdb to AGOL, publish the webmap, share, etc. I copied the URL of the hosted feature layer, which has been shared, edits allowed, etc. to the URL of the form. The hosted feature layer Supports applyEdits with GlobalIds: True.
Here are some details
Note to call Collector:
<a href="arcgis-collector://?itemID=9824d82442c64c498c2b404ef3e719c3&featureSourceURL=https://services.arcgis.com/EVsTT4nNRCwmHNyb/arcgis/rest/services/ea7e7ca50e7b48ea9fbbc17825fe123c_gdb/FeatureServer/1">Map a Polygon</a>